Product MUST be installed in accordance with current TCNA Handbook Tile Methods. Dry laying of this product prior to installation is recommended. Porcelains that meet the DCOF Standard may have a more abrasive textured surface that might hold dirt or debris. Remove with an appropriate pH neutral tile cleaner diluted with water, scrub vigorously and rinse thoroughly in order to clean. Consider this in the selection process. Per TCNA Guidelines, Running Bond/Brick Joint Patterns to be set with a Max. Offset Of 33% and Min. Grout Joint Of 1/16", Unless Otherwise Approved by Owner/Decision Maker. Use proper troweling techniques. Directional troweling and back-buttering Large Format Tiles helps ensure full coverage, mortar transfer, and bond. Grout Release can be utilized, and Bag Grouting may be considered.